From nobody Fri Nov 14 18:06:31 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1760814667078297.990695129959; Sat, 18 Oct 2025 12:11:07 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vACHL-0006eg-NI; Sat, 18 Oct 2025 15:07:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vACH4-0006Qb-3y; Sat, 18 Oct 2025 15:07:30 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vACH1-00014p-SZ; Sat, 18 Oct 2025 15:07:29 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id ED0E015F79E; Sat, 18 Oct 2025 22:06:58 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id A89A92F0607; Sat, 18 Oct 2025 22:07:02 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Thomas Ogrisegg , Paolo Bonzini , Michael Tokarev Subject: [Stable-10.1.2 17/23] target/i386: fix x86_64 pushw op Date: Sat, 18 Oct 2025 22:06:52 +0300 Message-ID: <20251018190702.1178893-6-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1760814674109158500 Content-Type: text/plain; charset="utf-8" From: Thomas Ogrisegg For x86_64 a 16 bit push op (pushw) of a memory address would generate a 64 bit store on the stack instead of a 16 bit store. For example: pushw (%rax) behaves like pushq (%rax) which is incorrect. This patch fixes that. Signed-off-by: Thomas Ogrisegg Link: https://lore.kernel.org/r/20250715210307.GA1115@x1.fnord.at Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini (cherry picked from commit 5a2faa0a0a2cbdad4a108a0e122b0e51b9bc94fd) Signed-off-by: Michael Tokarev diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.= c.inc index 51038657f0..a50f57dbaa 100644 --- a/target/i386/tcg/decode-new.c.inc +++ b/target/i386/tcg/decode-new.c.inc @@ -1541,7 +1541,7 @@ static void decode_group4_5(DisasContext *s, CPUX86St= ate *env, X86OpEntry *entry [0x0b] =3D X86_OP_ENTRYr(CALLF_m, M,p), [0x0c] =3D X86_OP_ENTRYr(JMP_m, E,f64, z= extT0), [0x0d] =3D X86_OP_ENTRYr(JMPF_m, M,p), - [0x0e] =3D X86_OP_ENTRYr(PUSH, E,f64), + [0x0e] =3D X86_OP_ENTRYr(PUSH, E,d64), }; =20 int w =3D (*b & 1); --=20 2.47.3